DK200000498A - safety Syringe - Google Patents

safety Syringe Download PDF

Info

Publication number
DK200000498A
DK200000498A DK200000498A DKPA200000498A DK200000498A DK 200000498 A DK200000498 A DK 200000498A DK 200000498 A DK200000498 A DK 200000498A DK PA200000498 A DKPA200000498 A DK PA200000498A DK 200000498 A DK200000498 A DK 200000498A
Authority
DK
Denmark
Prior art keywords
needle
adapter
tapered hole
syringe
base
Prior art date
Application number
DK200000498A
Other languages
Danish (da)
Inventor
Yu-Hau Chang Lai
Original Assignee
Lai Yu Hau Chang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CA002278390A priority Critical patent/CA2278390C/en
Priority to US09/361,111 priority patent/US6066115A/en
Priority to GB0007001A priority patent/GB2360458B/en
Application filed by Lai Yu Hau Chang filed Critical Lai Yu Hau Chang
Priority to DK200000498A priority patent/DK200000498A/en
Priority to BE2000/0226A priority patent/BE1013365A3/en
Priority to ES200000756A priority patent/ES2171113B1/en
Priority to AU45178/00A priority patent/AU745751B2/en
Priority to DE10034419A priority patent/DE10034419B4/en
Priority to JP2000215715A priority patent/JP2001037878A/en
Priority to FR0009384A priority patent/FR2796561B1/en
Publication of DK200000498A publication Critical patent/DK200000498A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
    • A61M2005/3224—Means to disalign the needle tip and syringe nozzle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M2005/342—Off-center needles, i.e. needle connections not being coaxial with the longitudinal symmetry axis of syringe barrel

Description

PATENTKRAV 1. Sikkerhedsinjektionssprøjte (1) bestående af: en sprøjtecylinder (2) udformet som et hult cylinderlegeme med begge ender åbne, hvor den ene ende er udformet som en dyse (21), og en anden ende som en fingerflange (22); et sprøjtestempel (3), som er teleskopisk anbragt inde i sprøjtecylinderen (2), og hvis ene ende er udstyret med et gummistempel (31) til dannelse af en tæt kontakt med og glidning indvendigt i sprøjtecylinderen (3), og hvis anden ende er udformet som en tommelfinger-hvileflade (32); et nålesæt (4), som omfatter en nålkanyle (41), et nålefæste (42) til forankring af nålkanylen (41), og en adapter (43) til fastholdelse af nålefæstet (42), hvor nålesættet (4) er teleskopisk anbragt inde i dysen (21) på sprøjtecylinderen (3) med nålkanylen blottet mod det ydre af sprøjtecylinderen (3); og et nålehylster (5) anbragt uden for dysen på sprøjtecylinderen (3) til afskærmning af nålkanylen (41) i nålesættet (4); hvor nålefæstet (42) har et udvendigt gevind til indgreb i et indvendigt gevind i adapteren (43); adapteren har en basis (46) med en langs omkredsen rundtgående rille (47) til en gummitætning (48), hvor gummitætningen (48) danner en tæt kontakt mellem basis (46) og dysen (21); basis (46) på adapteren (43) er udformet med et konisk hul (49) med e n mindskende diameter ved bunden heraf, hvor det koniske hul (49) er omsluttet af et antal klipsmidler (50), som er symmetrisk anbragt med lige radiale intervaller, hvor klipsmidlerne (50) er dannet med vinkeldele, som hælder indad med henblik på at definere profilen af det koniske hul (49), og et fremspring (40) er tildannet et passende sted på basis (46) tæt ved det koniske hul (49); og gummistemplet (31) på sprøjtestemplet (3) er udstyret med en konisk stav (33), som kan optages i det koniske hul (49) i adapteren (43) med henblik på indbyrdes indgreb. 2. Sikkerhedsinjektionssprøjte ifølge krav 1, hvor det koniske hul (49) e r anbragt i centrum af basis (46) på adapteren (43) med henblik på at ligge på linie med nålkanylen (41) og nålefæstet (42). 3. Sikkerhedsinjektionssprøjte ifølge krav 1, hvor det koniske hul (49) e r anbragt i centrum af basis (46) på adapteren (43), og nålkanylen (41) samt nå lefæstet (42) ligger på linie med et gennemgående hul (51) i adapteren (43) med henblik på dannelse af en sidefluidumrute i forhold til det koniske hul (49). 4. Sikkerhedsinjektionssprøjte ifølge krav 1, hvor det koniske hul (49) er omgivet af tre symmetrisk anbragte klipsmidler (50). 5. Sikkerhedsinjektionssprøjte ifølge krav 1, hvor det koniske hul (49) er omgivet af fire symmetrisk anbragte klipsmidler (50). 6. Sikkerhedsinjektionssprøjte ifølge krav 1, hvor det koniske hul (49) er omgivet af seks symmetrisk anbragte klipsmidler (50).A safety syringe (1) comprising: a syringe barrel (2) formed as a hollow cylinder body with both ends open, one end being formed as a nozzle (21) and another end as a finger flange (22); a syringe plunger (3) telescopically disposed within the syringe barrel (2) and one end of which is provided with a rubber piston (31) to form a close contact with and sliding inside the syringe barrel (3) and the other end of which is designed as a thumb resting surface (32); a needle set (4) comprising a needle cannula (41), a needle bracket (42) for anchoring the needle cannula (41), and an adapter (43) for holding the needle bracket (42), wherein the needle set (4) is telescopically disposed inside. in the nozzle (21) of the syringe barrel (3) with the needle cannula exposed to the exterior of the syringe barrel (3); and a needle sleeve (5) disposed outside the nozzle of the syringe barrel (3) for shielding the needle cannula (41) in the needle set (4); wherein the needle mount (42) has an external thread for engaging an internal thread in the adapter (43); the adapter has a base (46) with a circumferential groove (47) for a rubber seal (48), the rubber seal (48) forming a close contact between the base (46) and the nozzle (21); the base (46) of the adapter (43) is formed with a conical hole (49) of a decreasing diameter at the bottom thereof, the conical hole (49) being enclosed by a plurality of cutting means (50) symmetrically arranged with straight radial intervals where the cutting means (50) are formed with angular portions inclined inwardly to define the profile of the tapered hole (49) and a protrusion (40) formed at a suitable location on the base (46) close to the tapered hole (49); and the rubber piston (31) of the syringe plunger (3) is provided with a tapered rod (33) which can be received in the tapered hole (49) of the adapter (43) for mutual engagement. A safety injection syringe according to claim 1, wherein the tapered hole (49) is positioned in the center of base (46) of the adapter (43) to align with the needle cannula (41) and the needle mount (42). A safety injection syringe according to claim 1, wherein the tapered hole (49) is disposed in the center of the base (46) of the adapter (43) and the needle cannula (41) as well as the reach attachment (42) are aligned with a through hole (51). in the adapter (43) to form a lateral fluid path relative to the tapered hole (49). The safety injection syringe according to claim 1, wherein the tapered hole (49) is surrounded by three symmetrically arranged clip means (50). The safety injection syringe according to claim 1, wherein the conical hole (49) is surrounded by four symmetrically arranged clip means (50). The safety injection syringe according to claim 1, wherein the tapered hole (49) is surrounded by six symmetrically arranged clip means (50).

DK200000498A 1999-07-19 2000-03-23 safety Syringe DK200000498A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CA002278390A CA2278390C (en) 1999-07-19 1999-07-22 Safety syringe
US09/361,111 US6066115A (en) 1999-07-19 1999-07-27 Safety syringe
GB0007001A GB2360458B (en) 1999-07-19 2000-03-22 Safety syringe
DK200000498A DK200000498A (en) 1999-07-19 2000-03-23 safety Syringe
BE2000/0226A BE1013365A3 (en) 1999-07-19 2000-03-28 Safety needle.
ES200000756A ES2171113B1 (en) 1999-07-19 2000-03-28 SECURITY SYRINGE.
AU45178/00A AU745751B2 (en) 1999-07-19 2000-07-11 Safety syringe
DE10034419A DE10034419B4 (en) 1999-07-19 2000-07-14 safety syringe
JP2000215715A JP2001037878A (en) 1999-07-19 2000-07-17 Safety syringe
FR0009384A FR2796561B1 (en) 1999-07-19 2000-07-18 SAFETY SYRINGE

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
TW88212077 1999-07-19
CA002278390A CA2278390C (en) 1999-07-19 1999-07-22 Safety syringe
US09/361,111 US6066115A (en) 1999-07-19 1999-07-27 Safety syringe
GB0007001A GB2360458B (en) 1999-07-19 2000-03-22 Safety syringe
DK200000498A DK200000498A (en) 1999-07-19 2000-03-23 safety Syringe
BE2000/0226A BE1013365A3 (en) 1999-07-19 2000-03-28 Safety needle.
ES200000756A ES2171113B1 (en) 1999-07-19 2000-03-28 SECURITY SYRINGE.

Publications (1)

Publication Number Publication Date
DK200000498A true DK200000498A (en) 2001-09-24

Family

ID=27560826

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200000498A DK200000498A (en) 1999-07-19 2000-03-23 safety Syringe

Country Status (10)

Country Link
US (1) US6066115A (en)
JP (1) JP2001037878A (en)
AU (1) AU745751B2 (en)
BE (1) BE1013365A3 (en)
CA (1) CA2278390C (en)
DE (1) DE10034419B4 (en)
DK (1) DK200000498A (en)
ES (1) ES2171113B1 (en)
FR (1) FR2796561B1 (en)
GB (1) GB2360458B (en)

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Also Published As

Publication number Publication date
US6066115A (en) 2000-05-23
DE10034419A1 (en) 2001-03-15
FR2796561A1 (en) 2001-01-26
ES2171113A1 (en) 2002-08-16
GB0007001D0 (en) 2000-05-10
AU745751B2 (en) 2002-03-28
CA2278390C (en) 2003-10-07
BE1013365A3 (en) 2001-12-04
JP2001037878A (en) 2001-02-13
FR2796561B1 (en) 2003-01-24
AU4517800A (en) 2001-01-25
CA2278390A1 (en) 2001-01-22
GB2360458A (en) 2001-09-26
ES2171113B1 (en) 2003-11-01
GB2360458B (en) 2002-05-15
DE10034419B4 (en) 2007-05-03

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